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Posted by on July 22, 2005, 10:01 am
I'm replacing the overhead light in my kitchen. The old light has been
removed to reveal a total of 8 wires in the ceiling (four pairs of 2).
I have tested these 8 wires and only 1 is hot.
Two switches contol the light. Those have been left in the wall and
not touched (the old light was working fine). Also, there is one wall
outlet that appears to be included in the circuit, since it does not
work now that the ceiling light has been removed.
I realize it would have been best to mark the ceiling wires before
disconnecting them from the old light.
My question is, how to I properly wire the new light fixture?
Thanks in advance.
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Posted by Rick on July 22, 2005, 3:10 pm
How old is the house? Pull the swithces and post what you find. Sounds
like a California 3 way at first glance...
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Posted by on August 20, 2005, 5:25 pm
Rick wrote:
> How old is the house? Pull the swithces and post what you find. Sounds
> like a California 3 way at first glance...
I purchased one of those light sockets with two wires connected to it
to test if I have the wires coming out of the ceiling connected
correctly. I have been able to connect two ceiling wires to the black
wire of the light socket and two to the white wire of the socket and
the light turns on. Problem is the light is ALWAYS on and there are
still 4 more loose wires hanging from the ceiling.
For the remaining four wires, A and B are paired together in a metal
sheath and C and D are paired together. If I touch the electrical
tester to the hot wire from the ceiling, it glows bright when I touch A
or B, and glows dim when I touch C or D. If I flip one switch and
touch the hot wire and A, the glow chenges from bright to dim as the
switch goes on and off. Nothing changes when I do the same with wires
B, C and D from the ceiling.
Looking more closely, I now think there are wires from the two switches
and two outlets all coming out of the ceiling. That's why there are 4
sets of two.
Unless someone has some good ideas, I'm giving in and calling the
electrician next week.
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Posted by jstp on July 22, 2005, 4:10 pm
Your explanation is not clear enough for us to give you a definitive answer.
For example, you say that there are 8 wires, four pairs of 2. Obviously, you
don't need all these wires for the overhead light. Some of these wires are
just passing through in order to get to other fixtures or outlets. There
must be 2 pairs, wire-nutted together to which your fixture was connected.
If you remember which two pairs, that's all you need to know.
Also, you say that a wall outlet isn't working anymore. Normally, removing
just the light fixture shouldn't have affected the wall fixture at all. What
this tells me is that you removed some wire-nuts in order to remove the
light fixture wire, and that you didn't put the wire-nut back on the
original pair, thus cutting power to the wall fixture.
You need to wire your original pairs together, and then map your circuits.
If you don't know how to do this, ask someone who does to help you out.
> I'm replacing the overhead light in my kitchen. The old light has been
> removed to reveal a total of 8 wires in the ceiling (four pairs of 2).
> I have tested these 8 wires and only 1 is hot.
>
> Two switches contol the light. Those have been left in the wall and
> not touched (the old light was working fine). Also, there is one wall
> outlet that appears to be included in the circuit, since it does not
> work now that the ceiling light has been removed.
>
> I realize it would have been best to mark the ceiling wires before
> disconnecting them from the old light.
>
> My question is, how to I properly wire the new light fixture?
>
> Thanks in advance.
>
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Posted by EXT on July 22, 2005, 4:19 pm
Common mistake: disconnecting all the wires without marking or recording how
they were originally connected. Sorry, you are on your own. It is a fair
amount of work to trace out which are connected to switches, live feed and
others that may go to receptacles. You start by grouping the wires by
matching the cables that come into the box. Unfortunately there are a number
of different wiring techniques for hooking up three way switches. You
probably need to buy a book on wiring that explains the different methods
and wire colors. If this is still too much, get an electrician in. When all
the proper connections are done, pigtails should be provided to connect the
light fixture with, so that future removal does not entail disconnecting
everything again.
> I'm replacing the overhead light in my kitchen. The old light has been
> removed to reveal a total of 8 wires in the ceiling (four pairs of 2).
> I have tested these 8 wires and only 1 is hot.
>
> Two switches contol the light. Those have been left in the wall and
> not touched (the old light was working fine). Also, there is one wall
> outlet that appears to be included in the circuit, since it does not
> work now that the ceiling light has been removed.
>
> I realize it would have been best to mark the ceiling wires before
> disconnecting them from the old light.
>
> My question is, how to I properly wire the new light fixture?
>
> Thanks in advance.
>
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